Home / 8,013.72-12,019.11-2,170.80

Finding the Fourth Proportional to 8,013.72, 12,019.11 and 2,170.80

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Solution

The fourth proportional to 8,013.72, 12,019.11 and 2,170.80 is: 3,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.72 : 12,019.11 = 2,170.80 : x
  2. Step 2: Convert to fraction form
    8,013.72/12,019.11 = 2,170.80/x
  3. Step 3: Cross multiply
    8,013.72x = 12,019.11 × 2,170.80
  4. Step 4: Simplify right side
    8,013.72x = 26,091,083.99
  5. Step 5: Solve for x
    x = 26,091,083.99/8,013.72
  6. Step 6: Final answer
    x = 3,255.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.